Results 31 to 40 of about 1,818 (180)

Nickel-Titanium Alloys Welding of Thin Sheets Using GTAW: Comparative Study Between Similar and Dissimilar Welding with AISI 304 Stainless Steel [PDF]

Materials Research, 2018
The objective of the present work was to evaluate welding of thin sheets (thickness < 1 mm) of similar and dissimilar NiTi alloys with AISI 304 stainless steel using the Gas Tungsten Arc Welding (GTAW) process and to study the mechanical and ...
Matheus José Cunha de Oliveira, Raphael Henrique Falcão de Melo, Theóphilo Moura Maciel, Carlos José de Araújo   +3 more
doaj   +1 more source

Cold metal transfer (CMT) technology - An overview

Defence Technology, 2018
Cold Metal Transfer technology has revolutionized the welding of dissimilar metals and thicker materials by producing improved weld bead aesthetics with controlled metal deposition and low heat-input.
S. Selvi, A. Vishvaksenan, E. Rajasekar
doaj   +1 more source

Tegangan Ambang pada Sambungan Las CDW antara Baja dan Kuningan dalam Lingkungan Korosif

Rekayasa Mesin, 2020
Failure at the welded joint can be occurs due to the Stress Corrosion Cracking (SCC) phenomenon. Dissimilar welding is more susceptible to SCC when compared to similar welding.
Osmar Buntu Lobo, Djarot Bangun Darmadi, Oyong Novareza   +2 more
doaj   +1 more source

Effect of welding parameters on microstructure and mechanical properties of dissimilar AISI 304/ductile cast iron fusion welded joints

Scientific Reports
Problems associated with dissimilar fusion welding are mainly originated from the differences in melting points, coefficients of thermal conductivity and thermal expansion, …etc., and carbon content when welding dissimilar ferrous materials.
M. El-Shennawy, H. A. Abdel-Aleem, M. M. Ghanem, A. M. Sehsah   +3 more
doaj   +1 more source

External and Internal Cracking Caused by Heat Treatment in Laser Powder Bed Fusion‐Fabricated Inconel 738LC Components

Advanced Engineering Materials, EarlyView.
Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara, Masahiro Kusano, Ayako Ikeda, Toshio Osada, Makoto Watanabe   +4 more
wiley   +1 more source

Resource‐Aware Contrastive Scattering Meta‐Learning for Efficient Few‐Shot Acoustic Anomaly Detection

Advanced Intelligent Systems, EarlyView.
This paper introduces a resource‐aware Contrastive Scattering Meta‐Learning (CSML) framework for acoustic anomaly detection. By leveraging training‐free wavelet scattering and metric‐based meta‐learning, the model achieves competitive performance with only 50 K learnable parameters—a 98% reduction compared to state‐of‐the‐art frameworks—enabling ...
Rami Zewail, Bassem Mokhtar
wiley   +1 more source

Ultra Short Pulse Laser Welding of Glass to Metal in the Low Fluence Regime

Laser &Photonics Reviews, EarlyView.
Ultrashortpulse laser welding enables precise joining of glass and metal with minimal thermal damage. We introduce the TwoThresholds Criteria to identify suitable laser parameters by combining the nonlinearabsorption threshold in glass with the metalmodification fluence threshold.
Lukas Günther, Anne Friedrich, Jens Ulrich Thomas, Andreas Koglbauer, Dominique de Ligny   +4 more
wiley   +1 more source

Acrylonitrile Styrene Acrylate (ASA) With Optimized Aluminum Oxide (Al2O3) Nanofiller Content for MEX Additive Manufacturing: Thermomechanical, Rheological, and Quality Metrics

Polymer Composites, EarlyView.
Characterization processes for ASA/Al2O3 nanocomposites in MEX 3D printing. ABSTRACT As additive manufacturing (AM) continues to expand, the demand for durable components for outdoor applications is increasing. Acrylonitrile styrene acrylate (ASA), a weather‐resistant polymer, is widely used in these applications, and improving its performance could ...
Nectarios Vidakis, Markos Petousis, Nikolaos Michailidis, Emmanuel Stratakis, Vassilis M. Papadakis, Maria Spyridaki, Aikaterini Gkagkanatsiou, Apostolos Argyros, Nektarios K. Nasikas   +8 more
wiley   +1 more source

Formation mechanism of macrosegregation in dissimilar-filler welding of aluminum alloys

Journal of Materials Research and Technology, 2022
Dissimilar-filler welding is widely used for joining aluminum components. However, macrosegregation that will degrade the performance of the weld joint commonly occurs within the weld metal, because of the compositional difference between the filler and ...
Qipeng Dong, Xiaming Chen, Hiromi Nagaumi, Xiaonan Wang, Bo Zhang   +4 more
doaj   +1 more source

Evolution and formation of dissimilar metal interfaces in fusion welding

Acta Materialia, 2023
The evolving interface forms between two different liquids during dissimilarmetal welding can critically influence the development of the as solidified microstructure and determine the mechanical properties of the joint. To investigate the interface evolution mechanisms during arc welding , time resolved X radiography was employed.
Fan Wu, Thomas Flint, Renan M. Kindermann, Matthew J. Roy, Lu Yang, Stuart Robertson, Zhaoxia Zhou, Michael Smith, Pratheek Shanthraj, Paul English, Robert Atwood, Wajira Mirihanage   +11 more
openaire   +1 more source